RU2629663C2 - Herbicides containing flufenacet - Google Patents

Abstract

FIELD: chemistry.

SUBSTANCE: herbicidal agent contains as sole components: A) flufenacet (component A), B) aclonifen (component B) and C) diflufenican (component C).

EFFECT: invention improves efficiency of undesirable vegetation control.

14 cl, 1 tbl

Description

The invention relates to the technical field of plant protection products that can be used to control harmful plants, for example, in plant crops, and herbicidal agents contain a combination of flufenacet with several other herbicides as active ingredients.

Flufenacet (manufactured by Bayer Cropscience), as a substance with a herbicidal effect, belongs to the group of heteroaryloxyacetamides, and mixtures of representatives of this group with other herbicides are known from the literature (see, for example, US patents US 5,945,397 B, US 5,593,942 B, US 5,811,373 B and US 6,967,188) AT). In particular, US Pat. No. 5,858,920 B describes mixtures of heteroaryloxyacetamides with individual herbicidal active ingredients, for example, aclonifen, but there are no experimental data on the synergistic effect in this publication.

Flufenacet as a herbicidal active substance is highly active in relation to monocotyledonous and dicotyledonous harmful plants, and it is used, for example, for pre-sowing, pre-emergence or post-emergence treatment of cultivated and / or planted agricultural or horticultural plants, as well as in areas without specific crops (e.g. in cereals such as wheat, barley, rye, oats, triticale, rice, corn and millet, in sugar beets, sugarcane, rapeseed, cotton, subs lnechnike, soybeans, potatoes, tomatoes, beans, flax, meadow grass, fruit and berry crops, plantation crops, green areas and lawns, as well as in areas of residential buildings, industrial facilities and track facilities).

Flufenacet, as an individual active ingredient, is marketed, for example, under the trade names Cadou®, Drago®, Define® and Tiara®. From the literature it is known that in addition to the use as an individual active ingredient, flufenacet is also used in mixtures with other herbicides (see, for example, US patents US 5,985,797 V, US 5,912,206 V, US 6,492,301 V, US 6,864,217 V, US 6,486,096 V, US 2003 / 0069138 A, international application WO 2002/058472 A, US patents US 6,365,550 B, US 2003/0060367 A, US 6878675 B, US 6071858 B, international application WO 2007/112834 A), wherein flufenacet is commercially available as mixtures thereof with metribuzine (e.g. Axiom®, BAStille®, Artist®, Domain®, Plateen®, Fedor® and Draeda®), isoxaflutol (e.g. Epic® and Cadou Star®), metosulam (e.g. Imer, Diplôme® and Terano® products), difludrenican (e.g. Herold® and Liberator® products), 2,4-D (e.g. Drago 3.4® product), atrazine (e.g. Aspect® product), pendimethalin (e.g. products Crystal® and Malibu Pack®), atrazine and metribuzin (e.g. Axiom AT®) or diflufenican and flurtamone (e.g. Baccara Forte®).

Despite the high efficiency of flufenacet when used as an individual active ingredient, as well as in known mixtures, there remains a need to optimize the complex of applied properties of this active substance when applied in special fields. This is due to a variety of reasons, for example, the need to increase the effectiveness of the use of flufenacet in special areas, to increase its compatibility with cultivated plants, as well as its adaptation to new technologies for the production of individual crops and / or new herbicide-resistant harmful plants (for example, growing in grain crops, rice, corn, potato, sunflower, peas, carrots and fennel), for example, to harmful plants with resistance like Target-Site Resistance (abbreviated TSR; we are talking about weed populations asthenia, which include biotypes with site-specific resistance, that is, as a result of natural mutations in the gene sequence, the binding site of the active substances changes, as a result of which they completely or partially lose their ability to bind or accordingly exhibit their inherent effect), as well as weeds with resistance type Enhanced Metabolic Resistance (EMR for short; we are talking about weed populations that include biotypes with metabolic resistance, i.e. like The compounds are able to metabolize the active substances faster through enzyme complexes, that is, the active substances in such a plant break down faster). In accordance with the classification regulated by the Herbicide Resistance Action Committee (HRAC), the resistance of officially approved active substances depending on their mechanism of action (MoA) is divided, for example, as follows: HRAC-group A (acetyl coenzyme A-carboxylase inhibitors, abbreviated ACCase ) or HRAC-group B (inhibitors of acetolactate synthase, abbreviated ALS). Such optimization of the complex of applied properties can be of great importance both for individual herbicides and for their combinations.

The opportunity to optimize the complex of applied properties of a herbicide is provided by combining the active substance with one or more other suitable active substances. However, with the combined use of several active substances, the effects of their physical and biological incompatibility are often observed, for example, their insufficient stability in the general preparation, destruction of one or another active substance, and accordingly, antagonism of the active substances. At the same time, they strive to ensure that the combinations of active substances are characterized by optimal joint action, as well as high stability and the strongest possible synergistic effect, which allows to reduce consumption compared with the individual use of the active substances to be combined. Combinations of active substances are also desirable, which are generally characterized by increased compatibility with cultivated plants and / or which can be used in relation to specific production technologies. We are talking, for example, about reducing the depth of seeding, which is often not possible due to the lack of compatibility of the active substances with cultivated plants. By reducing the depth of sowing in the general case, a faster appearance of crop inputs is achieved, lowering the risk of diseases during the germination period (for example, pitosis and rhizocton rot), increasing suitability for wintering and density of plantings. This also applies to late sowing, which otherwise would have been impossible due to the risk of incompatibility of the active substances with the crops.

The present invention was based on the task of optimizing the complex of applied properties of flufenacet as a herbicidal active substance, including:

- simplification of application technology, helping to reduce consumer costs and reduce the harmful effects on the environment,

- increasing the flexibility of the use of active substances for pre-emergence and post-emergence treatment of cultivated and weed plants,

- improving the reliability of exposure and flexibility of the use of active substances on soils of variable type with variable humidity,

- improving the reliability of the impact on resistant species of weeds, contributing to new opportunities for effective management of resistance,

moreover, the solution of the last of these tasks seems especially important.

To solve the above problems, the invention provides herbicidal agents containing flufenacet, as well as aclonifen and diflufenican as other herbicides.

Thus, an object of the present invention are herbicidal agents containing, as the only components with herbicidal action:

A) flufenacet (component A),

B) aclonifen (component B) and

C) diflufenican (component C).

The active substances (components with herbicidal action) used according to the present invention with the above “common names” are known, for example, from the reference books “The Pesticide Manual” (14th edition, 2006/2007) and “The e-Pesticide Manual” (version 4.0, 2006-07, British Crop Protection Council and the Royal Soc. Of Chemistry), as well as from the online version of The Compendium of Pesticide Common Names (http: //www.alanwo or net / pesticides /).

Components A, B and C with herbicidal action, which in the following description are called (separate) active substances, (separate) herbicides or herbicidal components and which are used as individual substances or mixtures, are known, for example, from the reference book “The Pesticide Manual "(14th edition), in which they correspond to the following registration numbers (abbreviated as" PM # .. "with the corresponding numerical values (" sequentiell entry number ")):

- component A: flufenacet (PM # 381), a synonym for thiafluamide, for example N- (4-fluorophenyl) -N- (1-methylethyl) -2 - [[5- (trifluoromethyl) -1,3,4-thiadiazole -2-yl] oxy] acetamide,

- component B: aclonifen (PM # 9), for example 2-chloro-6-nitro-3-phenoxybenzenamine,

- component C: diflufenican (PM # 258), for example N- (2,4-difluorophenyl) -2- [3- (trifluoromethyl) phenoxy] -3-pyridinecarboxamide.

Used in the present description, the short common name of one or another active substance refers to any derivatives (if applicable) of this active substance, including esters, salts and isomers, in particular optical isomers, especially the corresponding market forms. If the common name is used to denote an ester or salt, then we are also talking about any other corresponding derivatives, for example, other esters, salts, free acids, neutral compounds and isomers, in particular optical isomers, especially the corresponding market forms. The above chemical names of the compounds indicate at least one of the compounds with the common name, most often the preferred compound.

Used in the present description, the abbreviation "AB / ha" means "active substance per hectare", and under the active substance means 100 percent active substance. All percentages given in the present description are indicated in mass percent (% wt.), And in the absence of other indications, we are talking about the relative weight of the corresponding component in terms of the total weight of the herbicidal agent (for example, in the form of a preparation).

The herbicidal preparations according to the invention contain components A, B and C with a herbicidal effect, and may also contain other components that can be used together with components A, B and C, for example, agrochemical active substances selected from the group consisting of insecticides, fungicides, protective additives and / or additives commonly used for plant protection and / or auxiliary components.

In a more preferred embodiment of the present invention, the herbicidal agents of the invention are characterized by a synergistic effect as a contribution to optimizing the consumer properties of these herbicidal agents. Corresponding synergistic effects are manifested, for example, with the combined use of all herbicidal components, however, they can often be observed also with the temporary combination of herbicidal components (fractional use). It is also possible to use individual herbicides or their combinations in the form of several portions (sequential use), for example, pre-emergence application with subsequent post-emergence application or early post-emergence application with subsequent medium or late post-emergence application. In this case, it is preferable the general use of all active substances contained in the herbicidal preparations according to the invention or their use which is close in time.

Synergistic effects help to reduce the amount of individual active substances consumed, increase their effectiveness at the same flow rate, control unregistered plant species (so-called omissions), prolong the time intervals for use, and / or reduce the number of necessary individual application operations, which makes it possible to provide consumer economically and environmentally more preferred weed control systems.

Consumable amounts of the herbicidal components and their derivatives contained in the herbicidal agent can vary widely. Pre-emergence and post-emergence treatment with herbicides with used amounts of herbicidal components in the range from 21 to 7500 g AB / ha ensures the destruction of a relatively wide range of annual and perennial weeds, low-value cereals and sedimentary species.

The consumable amounts of the herbicidal components in the herbicidal agent are in the following weight ratios to each other: (range of component A) :( range of component B) :( range of component C)

in the general case (1-2000) :( 1-100) :( 1-500),

preferably (1-40) :( 1-25) :( 1-30),

particularly preferably (1-10) :( 1-10) :( 1-8).

Consumable amounts of the herbicidal components contained in the herbicidal composition are:

- component A: in the General case from 10 to 2000 g AB / ha, preferably from 30 to 400 g AB / ha, particularly preferably from 50 to 300 g AB / ha,

- component B: in the General case from 10 to 5000 g AB / ha, preferably from 80 to 3000 g AB / ha, particularly preferably from 80 to 1000 g AB / ha,

- component C: generally from 1 to 500 g AB / ha, preferably from 10 to 300 g AB / ha, particularly preferably from 30 to 200 g AB / ha.

From the above doses, mass percentages (% by weight) of the respective herbicidal components can be calculated in terms of the total weight of the herbicidal agents, the latter optionally also containing other components.

The herbicidal preparations according to the invention are characterized by excellent herbicidal activity with respect to a wide range of economically important monocotyledonous and dicotyledonous weeds, in particular weeds, low-value cereals or saplings, including those species that are resistant, for example, to herbicidal active substances such as glyphosate , glufosinate, atrazine, photosynthesis inhibitors, imidazolinone herbicides, sulfonylcarbamides, (hetero) aryloxy-aryloxyalkylcarboxylic or phenoxy, respectively alkyl carboxylic acids (called Fops), cyclohexane dione oximes (called Dims), or auxin inhibitors. In addition, they have an effective effect on hard-to-destroy perennial weeds growing from rhizomes, root rods or other perennial organs. Moreover, these herbicidal agents can be used, for example, for pre-sowing, pre-emergence or post-emergence treatment, for example, together or separately.

Examples of certain representatives of monocotyledonous and dicotyledonous weeds that can be controlled by the herbicidal agents of the invention are, in particular, the following plants, not limited to the lists below.

Effectively controlled monocotyledonous weeds are, for example, Avena spp. (oatmeal), Alopecurus spp. (foxtail), Apera spp. (snowless), Brachiaria spp. (branches), Bromus spp. (bonfire), Digitaria spp. (dewdrop), Lolium spp. (choked), Echinochloa spp. (blackberry), Leptochloa spp. (leptochloe), Fimbristylis spp. (fimbristilis), Panicum spp. (millet), Phalaris spp. (canary), Poa spp. (bluegrass) and Setaria spp. (bristle), Cyperus (sati) species from the annual group, Agropyron (wheatgrass), Cynodon (porcupine) and Imperata (licorice) as perennial species, as well as Sorghum (sorghum) and long-term Cyperus (sati) species.

In the case of dicotyledonous weeds, the spectrum of action of the herbicidal preparations according to the invention covers, for example, the following species: Abutilon spp. (abutilon), Amaranthus spp. (amaranth), Chenopodium spp. (gauze), Chrysanthemum spp. (chrysanthemum), Galium spp. (bedstraw), Ipomoea spp. (morning glory), Kochia spp. (kohiya), Lamium spp. (carapace), Matricaria spp. (Matricaria), Pharbitis spp. (farbitis), Polygonum spp. (Highlander), Sida spp. (keys), Sinapis spp. (mustard), Solanum spp. (nightshade), Stellaria spp. (asterisk), Veronica spp. (Veronica), Eclipta spp. (ecliptic), Sesbania spp. (sesbania) and Aeschynomene spp., annual species of Viola spp. (violets) and Xanthium spp. (cobweed), as well as perennial weeds Convolvulus (bindweed), Cirsium (cirsium), Rumex (sorrel) and Artemisia (wormwood).

If the herbicidal agents according to the invention are used to treat the surface of the soil before seed germination, there is complete prevention of shoot emergence of weed plants or they develop until the “spine” phase (in monocotyledons) or the cotyledon phase (in dicotyledons) is reached, but then their growth stops, and after a period of time of two to four weeks, they die.

During the post-emergence treatment of the green parts of the weeds with the herbicidal agents of the invention, after an extremely short period of time, the weeds also abruptly stop growing, which remain at the development stage characteristic of the application or die after a certain time, and therefore harmful to cultivated plants competition with weeds is eliminated for a long time at an extremely early stage of growth of the latter. The herbicidal compositions of the invention can also be used to treat rice cultivated in water, after which the herbicidal products are absorbed by the weeds through the soil, shoots and roots.

The herbicidal preparations according to the invention are distinguished by a rapidly onset and at the same time prolonged herbicidal action. The active ingredients contained in the compositions of the invention are generally characterized by optimum rain indelibility. A particular advantage of the herbicidal preparations according to the invention is that the effective dosages of the components A, B and C contained in them can be so low that they have only a slight effect on the soil. Due to this, it is possible to use the means proposed in the invention in sensitive cultures, as well as almost completely eliminates contamination of subsoil water. Proposed in the invention a combination of active substances can significantly reduce the required consumption.

When the components A, B and C are used together in the products of the invention in a preferred embodiment of the invention, superadditive (synergistic) effects are observed as a contribution to the optimization of the complex of applied properties. Moreover, combinations of herbicides have a stronger effect compared to the expected total effect of the same herbicides, but used separately. Synergistic effects allow for a stronger and / or longer exposure of the herbicides to weeds; expand the range of weeds to be destroyed, low-value cereals and sedge, for which sometimes only a single treatment or a correspondingly smaller number of treatments is required; implement herbicidal action faster; control still unregistered weed species; control, for example, those species of weeds that are characterized by tolerance or resistance to individual or more herbicides; to prolong the time necessary for processing and / or reduce the number of necessary individual processing operations or, accordingly, reduce consumption rates in general and, ultimately, provide consumers with economically and environmentally more preferable weed control systems.

The above properties and advantages in the practical control of weeds are necessary to exclude undesirable competition of agricultural, forestry and horticultural crops, as well as fodder and hay-pasture crops or crops used for energy production (biogas, bioethanol), with weeds, and therefore , to ensure and / or qualitative and quantitative increase in productivity. The performance of the above-described new combinations of active substances contained in the herbicidal preparations according to the invention substantially exceeds the norms of the corresponding technical standard.

Despite the fact that the herbicidal agents according to the invention are characterized by excellent herbicidal activity in relation to monocotyledonous and dicotyledonous harmful plants, they cause only insignificant damage to cultivated plants or do not harm them at all.

In addition, proposed in the invention funds in some cases, may show the ability to regulate the growth of cultivated plants. These funds have a regulatory effect on the metabolism characteristic of cultivated plants, and therefore, they can be used to target the ingredients of cultivated plants and facilitate harvesting, for example, by initiating desiccation and shortening of stems. Along with this, the inventive agents are also suitable for general control of plant development and inhibition of undesirable vegetative growth of plants, leading to their death. Inhibition of vegetative growth is of great importance for many monocotyledonous and dicotyledonous crops, because due to this, crop losses during storage can be reduced or completely prevented.

Due to the improved set of applied properties inherent in the proposed invention, they can also be used to control harmful plants in known plant cultures or cultivated plants and plants used as a source of energy that are tolerant or modified by genetic technology methods. Transgenic plants, as a rule, have especially preferred properties, for example, resistance to certain pesticides, especially certain herbicides (for example, components A, B and C contained in the inventive products), resistance to harmful insects, plant diseases or pathogens of plants, in particular certain microorganisms, such as fungi, bacteria or viruses. Other special properties of the agents according to the invention include, for example, the quantity, quality and suitability for storage of crop products, as well as the composition of the specific ingredients. Thus, for example, transgenic plants with a high starch content, altered starch quality or other composition of fatty acids of the harvested crop, respectively, an increased content of vitamins or improved energy properties are known. Other special properties may include tolerance or resistance to abiotic stress factors, such as heat, cold, dryness, salt and ultraviolet radiation. The means proposed in the invention in connection with their inherent herbicidal and other properties can also be used to control harmful plants in cultures of known plants or plants to be developed by selection of mutants, as well as by crossing mutagenic and transgenic plants.

The usual methods for creating new plants that have modified properties compared to plants that have been common until recently are, for example, classical methods of selection and the formation of mutants. Alternatively, new plants with altered properties can be created using genetic technology (see, for example, European patents EP 0221044 A and EP 0131624 A). The following possible options are known, for example: modification of cultivated plants by genetic technology methods to modify starch synthesized by these plants (see, for example, international applications WO 92/011376 A, WO 92/014827 A, WO 91/019806 A); transgenic crop plants that exhibit resistance due to gene stacking to certain herbicides such as glufosinate (see, for example, European patents EP 0 242 366 A and EP 242246 A), glyphosate (international application WO 92/00377 A) or sulfonyl carbamides (European application EP 0 25799 and, US patent US 5,013,659), or with respect to the combinations or mixtures of these herbicides (such transgenic crop plants are, for example, corn or soybean or trade name designation Optimum GAT ^{TM TM} (tolerance Ch phosphate in relation to acetolactate synthase ALS); transgenic crops, such as cotton, capable of producing Bacillus thuringiensis toxins (Bt-toxins), which give plants resistance to certain pests (European patents EP 0142924 A and EP 0193259 A); transgenic cultivated plants with modified fatty acid composition (international application WO 91/13972 A); cultivated plants modified by methods of genetic technology with new ingredients or secondary substances, for example, new phytoalexins, which cause increased resistance to disease (European patents EP 309862 A and EP 0464461 A); plants with less intensive photorespiration modified by methods of genetic technology, which are characterized by increased productivity and increased stress tolerance (European patent EP 0305398 A); transgenic crop plants that produce pharmaceutically or diagonally important proteins (the so-called molecular "farming"); transgenic crop plants that are characterized by increased productivity or higher quality of the crop; transgenic crop plants that differ, for example, by a combination of the above new properties (the so-called gene stacking)).

In principle, many molecular biology methods are known that allow the creation of new transgenic plants with modified properties (see, e.g., I. Potrykus, G. Spangenberg (publishers), Gene Transfer to Plants, Springer Lab Manual, 1995, Springer, Berlin, Heidelberg, as well as Christou, Trends in Plant Science, 1, 1996, cc. 423-431). To perform the appropriate manipulations using the methods of genetic technology, nucleic acid molecules can be introduced into the plasmid, which allows the possibility of mutagenesis or sequence changes due to the recombination of DNA sequences. Using standard methods, for example, cationic exchange can be performed, fragments of sequences can be removed, and natural or synthetic sequences can be added. To connect DNA fragments to each other, adapters or linkers can be attached to them (see, for example, Sambrook et al., 1989, Molecular Cloning, A Laboratory Manual, 2nd edition, Cold Spring Harbor Laboratory Press, Cold Spring Harbor, New York, or Winnacker "Gene und Klone", VCH Weinheim, 2nd Edition, 1996).

Plant cells with reduced activity of a gene product can be formed, for example, by expression of at least one corresponding antisense DNA and one sense DNA to achieve a co-suppression effect or at least one ribozyme of an appropriate construct that cleaves a specific transcript of said gene product.

For this purpose, you can use DNA molecules that contain both the general coding sequence of the gene product, including possibly flanking sequences, and DNA molecules that contain only fragments of the coding sequence, which must be long enough to provide an antisense effect in the cells. It is also possible to use DNA sequences that have a high degree of homology with the coding sequences of the gene product, but are not completely identical.

When expressing nucleic acid molecules in plants, the synthesized protein can be localized in any compartment of the plant cell. However, to ensure localization in a particular compartment, the coding region, for example, can be combined with DNA sequences that provide localization in a particular compartment. Similar sequences are known to those skilled in the art (see, for example, Braun and others, Embo J., 11 (1992), 3219-3227, Wolter and others, Proc. Natl. Acad. Sci. USA, 85 (1988), 846-850, Sonnewald and others, Plant J., 1 (1991), 95-106). Nucleic acid molecules can also be expressed in plant cell organelles.

Transgenic plant cells can be regenerated to complete plants by known methods. By transgenic plants, in principle, are meant plants of any species, that is, both monocotyledonous and dicotyledonous plants. So, for example, transgenic plants can be created whose properties are altered by overexpression, suppression or inhibition of homologous (i.e., natural) genes or gene sequences or expression of heterologous (i.e., foreign) genes or gene sequences.

In addition, an object of the present invention is also a method of controlling the growth of unwanted plants (for example, harmful plants), preferably in plant crops, in particular cereals, for example, durum and soft wheat, barley, rye, oats, products of their crosses, for example triticale planted or sown on non-irrigated or flooded plantations, rice, corn, millet, such as sorghum, sugar beets, sugarcane, canola, cotton, sunflowers, soybeans, potatoes, tomatoes, legumes (e.g. low shrubs I beans and fodder beans), flax, meadow grass, fruit crops, plantations, green spaces and lawns, as well as territories of residential and industrial buildings and travel devices, especially preferably in monocotyledons such as crops, for example wheat, barley, rye, oats, products of their crossing, for example triticale, rice, corn and millet, as well as in dicotyledonous crops, such as sunflower, soybeans, potatoes, tomatoes, peas, carrots and fennel, with components A, B and C proposed in the invention of herbits together or separately, for example, by the pre-emergence method (very early to late), the post-emergence method or the pre-emergence and post-emergence methods, are applied to plants, for example harmful plants, parts of plants, seeds, or to the surface on which the plants grow, for example, to sown area .

The object of the present invention is the use proposed in the invention of herbicidal agents containing components A, B and C, for controlling harmful plants, preferably in plant crops, preferably in the above plant crops. Another object of the present invention is the use of the herbicidal compositions according to the invention containing components A, B and C for controlling herbicide-resistant harmful plants (for example, resistance of TSR and EMR in the case of ALS and ACCase), preferably in plant crops, preferably in the above plant crops.

The object of the present invention is also a method for the selective control of harmful plants in plant crops, preferably in the aforementioned plant crops, using the herbicidal preparations according to the invention containing components A, B and C, as well as the application of this method.

The object of the present invention is also a method of combating the growth of unwanted plants using the proposed herbicidal agents containing components A, B and C, as well as the application of this method in plant cultures modified by genetic technology (transgenic) or created by mutational selection, which they are resistant to growth substances, such as 2,4-D and dicamba, or herbicides that inhibit essential plant enzymes, such as acetolactate synthase (ALS), EPSP synth aza, glutamine synthase (GS) or hydroxyphenyl pyruvate dioxygenase (HPPD), or respectively to herbicides from the group consisting of sulfonyl carbamides, glyphosate, glufosinate, benzoyl isoxazoles and similar active substances, or to any combination of these active substances. The herbicidal preparations according to the invention can be particularly preferably used in transgenic cultivated plants resistant to the combination of glyphosate with glufosinate and glyphosate with sulfonyl carbamides or imidazolinones. Even more preferably in transgenic cultivated plants, for example corn or soy, the herbicides according to the invention with the trade name or designation Optimum ^TM GAT ^TM (Glyphosate ALS Tolerant) can be used.

The object of the present invention is the use proposed in the invention of herbicidal agents containing components A, B and C, for controlling harmful plants, preferably in plant crops, preferably in the above plant crops.

In addition, the herbicidal agents according to the invention can be used for non-selective control of the growth of unwanted plants, for example, plantation crops, plants growing on the road or in industrial or railway structures, or for the selective control of the growth of unwanted plants in crops used for energy production (biogas, bioethanol).

Proposed in the invention can be in the form of mixed preparations of components A, B and C, optionally containing other agrochemical active substances, additives and / or conventional prescription auxiliary components, moreover, such preparations are usually diluted with water before use, or such herbicidal agents in the form of so-called pesticidal mixtures in a tank are prepared by general dilution of separately or partially separately prepared components with water. Under known conditions, mixed preparations can be diluted with other liquids or solid materials, and can also be used undiluted.

Depending on the given biological and / or physico-chemical characteristics, it is possible to prepare preparations of various types from components A, B and C or their combinations. Possible preparations in the general case are, for example, wettable powders, water-soluble concentrates, emulsifiable concentrates, aqueous solutions, oil-in-water or water-in-oil emulsions, sprayable solutions or emulsions, suspension concentrates, dispersions, oil dispersions, suspension emulsions, pulverulent preparations, disinfectants introduced into the soil or granulated granules, water-dispersible granules, ultra-low volume preparations, microcapsule dispersions or wax dispersions.

Certain types of drugs are, in principle, known and described, for example, in the following manuals: "Manual on Development and Use of FAO and WHO Specifications for Pesticides", FAO and WHO, Rome, Italy, 2002; Winnacker-Küchler, "Chemische Technologie", Volume 7, C. Hanser Verlag, Munich, 4th Edition, 1986; van Valkenburg, "Pesticide Formulations", Marcel Dekker, New York, 1973; K. Martens, "Spray Drying Handbook," 3rd Edition 1979, G. Goodwin Ltd., London.

Auxiliary components necessary for the preparation of preparations, in particular inert materials, surfactants, solvents and other additives, are also known and described, for example, in Watkins, "Handbook of Insecticide Dust Diluents and Carriers", 2nd Edition, Darland Books ; Caldwell N.J., H.v. Olphen, "Introduction to Clay Colloid Chemistry", 2nd Edition, J. Wiley & Sons, New York; C. Marsden, "Solvents Guide," 2nd Edition, Interscience, New York, 1963; McCutcheon's "Detergents and Emulsifiers Annual", MC Publ. Corp., Ridgewood N.J., Sisley and Wood, "Encyclopedia of Surface Active Agents", Chem. Publ. Co. Inc., New York, 1964; Schönfeldt, "Grenz-flächen-aktive Äthylenoxidaddukte", Wiss. Verlagsgesell., Stuttgart, 1976; Winnacker-Küchler, "Chemische Technologie", Volume 7, C. Hanser, Munich, 4th Edition, 1986.

Based on these preparations, it is possible to prepare combinations with other agrochemical active substances, for example fungicides and insecticides, as well as with protective agents, fertilizers and / or growth regulators, for example, combinations in the form of finished preparations or mixtures prepared in a tank.

Wettable powders are uniformly water-dispersible preparations which, in addition to active substances and one or more diluent or inert materials, contain ionic and / or nonionic type surfactants (wetting agents, dispersants), for example polyoxyethylated alkyl phenols, polyethoxylated fatty alcohols, polyethoxylated aliphatic amines , copolymers of propylene oxide with ethylene oxide, alkanesulfonates, alkylbenzenesulfonates, alkylnaphthalenesulfonates, sodium lignin sulfate s, 2,2'-dinaphthylmethane-6,6'-disulfokisly sodium dibutilnaftalinsulfokisly oleoilmetiltaurinovokisly sodium or sodium.

Emulsifiable concentrates are obtained by dissolving the active substance in an organic solvent or a mixture of organic solvents, for example, butanol, cyclohexanone, dimethylformamide, xylene, higher boiling aromatic compounds or hydrocarbons, by adding one or more ionic and / or nonionic surfactants (emulsifiers). As emulsifiers, for example, calcium alkylarylsulphonic acid salts, in particular calcium dodecylbenzenesulfonate, or nonionic emulsifiers, in particular polyglycol and fatty acid esters, alkylaryl polyglycols, aliphatic polyglycols, copolymers of propylene oxide, ethylene polyesters, and alkyl polyethers, can be used. polyoxyethylene sorbitan fatty acid esters or polyoxyethylene sorbitan esters.

Dusty preparations are obtained by co-grinding the active substance and finely divided solids, for example talc, natural clays such as kaolin, bentonite and pyrophyllite, or diatomaceous earth.

Suspension concentrates are suspensions of active substances on a water basis. They can be obtained, for example, by wet grinding in conventional bead mills and optionally adding surfactants, such as those mentioned above. In addition to the suspended active substance, or, respectively, active substances, other dissolved active substances may also be present in such a preparation.

Oily dispersions are suspensions of active ingredients based on oils, and under the oils are meant any organic liquids, for example vegetable oils, aromatic or aliphatic solvents or fatty acid alkyl esters. Oil dispersions can be obtained, for example, by wet grinding in standard bead mills and, if necessary, the addition of other surfactants (wetting agents, dispersants), for example, those mentioned above for other types of preparations. In addition to the suspended active substance, or, respectively, active substances, other dissolved active substances may also be present in such a preparation.

Emulsions, for example, oil-in-water emulsions, can be obtained, for example, using mixers, colloidal mills and / or static mixers from mixtures consisting of water and organic solvents immiscible with it, as well as other surfactants used if necessary , for example, the above when considering drugs of other types. In this case, the active substances are in a dissolved state.

Granules can be obtained by spraying the active substance on an inert granular material capable of adsorbing it, or by applying active substance concentrates by means of adhesives, for example polyvinyl alcohol, polyacrylic acid sodium salt or mineral oils, onto the surface of carriers such as sand, kaolinites, chalk or granular inert material. In addition, suitable active ingredients can be granulated, if necessary, in a mixture with fertilizers by methods commonly used for the production of granular fertilizers. Water-dispersible granules are typically obtained by conventional methods such as spray drying, fluidized bed granulation, disk granulation, mixing by high speed mixers and extrusion in the absence of a solid inert material. Information on granulate production using disk granulation, fluidized bed granulation, extrusion and spray drying is provided, for example, in the Spray-Drying Handbook, 3rd Edition, 1979, G. Goodwin Ltd., London; J.E. Browning, "Agglomeration", Chemical and Engineering, 1967, cc. 147 and the following; "Perry's Chemical Engineer's Handbook," 5th Edition, McGraw-Hill, New York, 1973, cc. 8-57.

Other details regarding the preparation of plant protection products are given, for example, in the G.C. guidelines. Klingman, "Weed Control as a Science", John Wiley and Sons, Inc., New York, 1961, cc. 81-96, J.D. Freyer, S.A. Evans, "Weed Control Handbook," 5th Edition, Blackwell Scientific Publications, Oxford, 1968, cc. 101-103.

Agrochemical preparations, as a rule, contain from 0.1 to 99% of the mass., In particular from 2 to 95% of the mass. active substances of herbicidal components, and depending on the type of preparation, the following concentrations of active substances are common: in wettable powders, they comprise, for example, from about 10 to 95% by weight, with the remainder being up to 100% by weight. consists of the usual components for the drug. The concentration of the active substance in emulsifiable concentrates may be, for example, from 5 to 80% of the mass. Dust-like preparations in most cases contain from 5 to 20% of the mass. active substance, while the content of the active substance in sprayed solutions is in the approximate range from 0.2 to 25% of the mass. The content of the active substance in dispersible granules is partly determined by the state of the active compound, liquid or solid, as well as from auxiliary components and fillers used for granulation. The content of the active substance in water-dispersible granules, as a rule, is from 10 to 90% of the mass.

In addition, these active ingredient preparations, if necessary, contain appropriate conventional adhesion promoters, wetting agents, dispersants, emulsifiers, preservatives, antifreezes, solvents, fillers, colorants, carriers, anti-foaming agents, means for reducing evaporation, and also means for regulating pH and viscosity .

The herbicidal effect of the herbicidal combinations according to the invention can be enhanced, for example, by means of surfactants, for example, wetting agents selected from the group consisting of polyglycol fatty alcohols. Moreover, the residue of the fatty alcohol preferably contains 10-18 carbon atoms, and the polyglycol fragment consists of 2-20 ethylene oxide units. Such products may be in non-ionic or ionic form, for example in the form of the corresponding sulfates or phosphates, which are used, for example, in the form of alkali metal salts (for example, sodium or potassium salt), ammonium salts or alkaline earth metal salts, for example magnesium salts, in particular in the form of a C ₁₂ / C ₁₄ fatty alcohol sodium diglycol sulfate (product of Genapol ^® LRO from Clariant GmbH) (see, for example, European patent applications EP-A-0476555, EP-A-0048436 and EP-A-0336151 or application US Patent US-A-4,400,196; and Proc. EWRS Symp. "Factors Affecting Herbicidal Activity an d Selectivity ", cc. 227-232, 1988). Suitable nonionic fatty polyglycol alcohols are, for example, the corresponding products with 2-20, preferably 3-15 ethylene oxide units, and 10-18, preferably 1-14 carbon atoms, in particular isotridecyl alcohol-polyglycol, for example, a representative of the series Genapol ^® X products from Clariant GmbH, namely Genapol ^® X-030, Genapol ^® X-060, Genapol ^® X-080 or Genapol ^® X-150.

The present invention also relates to combinations of components A, B and C with the above wetting agents from a series of polyglycol fatty alcohols, the fatty alcohol residue of which preferably contains 10-18 carbon atoms, and the polyglycol fragment consists of 2-20 ethylene oxide units, and which can be in non-ionic or ionic form (for example, in the form of sulfates of a fatty alcohol-polyglycol). Preferred are C ₁₂ / C ₁₄ fatty alcohol-diglycol sodium sulfate (Genapol ^® LRO from Clariant GmbH) and isotridecyl alcohol-polyglycol with 3-15 ethylene oxide units, for example, from the Genapol ^® X series of products from Clariant GmbH, and namely, Genapol ^® X-030, Genapol ^® X-060, Genapol ^® X-080 or Genapol ^® X-150. In addition, it is known that fatty alcohols-polyglycols in non-ionic or ionic form (for example, sulfates of fatty alcohols-polyglycols) are also suitable for use as penetration enhancing auxiliary components and enhancers of a number of other herbicides, in particular herbicides from a number of imidazolinones (see for example, European patent application EP-A-0502014).

The herbicidal effect of the herbicidal combinations according to the invention can also be enhanced by the use of vegetable oils. At the same time, vegetable oils mean oils contained in certain types of plants, such as soybean oil, rapeseed oil, corn oil, sunflower oil, cottonseed oil, linseed oil, coconut oil, palm oil, thistle oil or castor oil, in particular rapeseed oil, as well as transesterification products of these oils, for example the corresponding alkyl esters, in particular rapeseed oil methyl ester or ethyl ester thereof.

Vegetable oils are preferably fatty acid esters with 10-22 carbon atoms, preferably with 12-20 carbon atoms. Fatty acid esters with 10-22 carbon atoms include, for example, esters of unsaturated or saturated fatty acids with 10-22 carbon atoms, in particular with an even number of carbon atoms, for example, esters of erucic acid, lauric acid or palmitic acid, in especially esters of fatty acids with 18 carbon atoms, such as stearic acid, oleic acid, linoleic acid or linolenic acid.

Examples of fatty acid esters with 10-22 carbon atoms are esters that are obtained by converting glycerol or glycol with fatty acids with 10-22 carbon atoms and which are contained, for example, in the oils of certain types of plants, or alkyl fatty acid esters with 1-20 carbon atoms in the alkyl residue and 10-22 carbon atoms in the fatty acid residue, which can be obtained, for example, by transesterification of the above esters of glycerol or glycol with alcohols with 1-20 carbon atoms (for example, m Tanoli, ethanol, propanol or butanol). The transesterification can be performed by known methods described, for example, in the Römpp Chemie Lexikon Handbook, 9th edition, Volume 2, p. 1343, Thieme Verlag, Stuttgart.

Preferred fatty acid alkyl esters with 1-20 carbon atoms in the alkyl residue and 10-22 carbon atoms in the fatty acid residue are methyl ether, ethyl ether, propyl ether, butyl ether, 2-ethylhexyl ether and dodecyl ether. Preferred esters of glycol or glycerol and fatty acids with 10-22 carbon atoms are esters of this type, in particular based on fatty acids with an even number of carbon atoms, for example, erucic acid, lauric acid or palmitic acid, and in particular fatty acids with 18 carbon atoms, such as stearic acid, oleic acid, linoleic acid or linolenic acid, these being individual alkyl esters or mixtures thereof.

The inventive herbicidal compositions may contain the following oils, for example in the form of commercially available additives for oleaginous formulations primarily based on rapeseed oil: Hasten ^® (product of the firm Victorian Chemical Company, Australia, hereinafter referred to as Hasten, main ingredient is ethyl rapeseed oil), Actirob ^® B (Novance product of the firm, France, below called Actirobb, the main component of which is a methyl ester of rapeseed ^{oil), Rako-Binol ® (Bayer} AG company product, Germany, LO called Rako-Binol, main component is rapeseed oil), Renol ^® (Stefes firm product, Germany, hereinafter referred to as Renol, the main component of which is a methyl ester of rapeseed oil) or Stefes Mero ^® (Stefes firm product, Germany, hereinafter referred to as Mero , the main component of which is rapeseed oil methyl ester).

In another embodiment, a combination of components A, B and C with the above plant oils, in particular rapeseed oil, preferably in the form of commercially available additives for oleaginous drug, primarily in the form of additives based on rapeseed oil such as Hasten ^®, Actirob ^® B, Rako-Binol ^® , Renol ^® or Stefes Mero ^® .

The market forms of the above preparations are diluted, if necessary, as usual, if necessary, moreover, for example, water is used to dilute wettable powders, emulsifiable concentrates, dispersions and water-dispersible granules. Dusty preparations applied to the soil or granular granules, as well as sprayed preparations, are usually not diluted with other inert substances before use.

The active substances can be used to treat plants, plant parts, seeds or sown areas (arable land), preferably greening plants and their parts, and also, if necessary, for additional processing of arable lands.

It is possible to jointly use the active substances in the form of mixtures prepared in the tank, and concentrated preparations of the optimal composition from the individual active substances are mixed in the tank with water, and the resulting working solution is used for the above treatment.

An advantage of the herbicidal preparations according to the invention, comprising a combination of components A, B and C, is ease of use, since the amounts of these components are pre-selected in an appropriate mutual ratio. In addition, optimal mutual coordination of the amount of auxiliary components contained in the preparation is possible.

A. General preparation examples

a) For the preparation of a pulverulent preparation, 10 parts by weight of active substance / mixture of active substances is mixed with 90 parts by weight used as an inert material of talc, and the resulting mixture is crushed in an impact mill.

b) 25 parts by weight are mixed to prepare a readily dispersible wettable powder in water. active substance / mixture of active substances, 64 parts by weight used as an inert material of kaolin-containing clay, 10 parts by weight potassium ligninsulfonic acid and 1 parts by weight oleoyl methyl tauric acid sodium, used as a wetting and dispersing agent, and the resulting mixture is ground in a core mill.

c) For the preparation of easily dispersible in water suspension concentrate 20 wt.h. active substance / mixture of active substances is mixed with 5 parts by weight tristyrylphenol polyglycol (Soprophor BSU), 1 parts by weight sodium lignosulfonate (Vanisperse CB) and 74 parts by weight water, and the resulting mixture is triturated in a ball mill until the dispersion reaches less than 5 microns.

d) To prepare an easily dispersible oil dispersion in water, 20 parts by weight are mixed. active substance / mixture of active substances with 6 parts by weight alkylphenol polyglycol (Triton ^® X 207), 3 parts by weight isotridecanol polyglycol (8 ethylene oxide units) and 71 parts by weight paraffin mineral oil (boiling range, for example, from 255 to 277 ° C), and the resulting mixture is triturated in a ball mill until the dispersion reaches less than 5 microns.

e) An emulsifiable concentrate is obtained from 15 parts by weight active substance / mixture of active substances, 75 parts by weight cyclohexanone as a solvent and 10 parts by weight hydroxyethylated nonylphenol used as an emulsifier.

f) To prepare a water-dispersible granulate, 75 parts by weight are mixed. active substance / mixture of active substances, 10 parts by weight calcium ligninsulfonic acid,

5 parts by weight sodium lauryl sulfate,

3 parts by weight polyvinyl alcohol and

7 parts by weight kaolin

the resulting mixture is ground in a rod mill and the powder is granulated in a fluidized bed by spraying water used as a granulating liquid.

g) In addition, to prepare a water-dispersible granulate in a colloid mill, homogenize and pre-grind

25 parts by weight active substance / mixture of active substances,

5 parts by weight 2,2'-dinaphthylmethane-6,6'-disulfonic sodium,

2 parts by weight sodium oleoyl methyl tauric acid,

1 parts by weight polyvinyl alcohol

17 parts by weight calcium carbonate and

50 parts by weight water,

after which the mixture is ground in a bead mill and the resulting suspension is sprayed and dried in a spray drying tower by means of a single-channel nozzle.

B. Biological examples

a) Methods

Greenhouse experiments

Under standard experimental conditions, pots with a diameter of 8 to 13 cm filled with normative natural field soil (dusty loam, non-sterile) are sown with seeds of weeds and low-value cereals of various biotypes (origin) and sprinkled with a protective layer of soil about 1 cm thick. Then, the pots placed in a greenhouse for cultivation of plants until they are treated (light 12-16 hours, daytime temperature 20-22 ° C, night temperature 15-18 ° C). On a laboratory device for spraying, the pots are treated with working solutions containing the products of the invention, mixtures of the prior art or, accordingly, separately used components. Treatment with active substances or combinations of active substances in the form of water-dispersible granules, wettable powders, emulsifiable concentrates or other preparations is carried out before the corresponding stages of plant growth. The consumption of water used for spraying is from 100 to 600 l / ha. After processing, the plants are again placed in greenhouses.

After approximately three weeks after treatment, in accordance with a scale of 0-100%, a visual assessment of the effect on the soil and / or leaves is performed in comparison with the untreated comparative group, with 0% indicating no noticeable effect compared to the untreated comparative group, while 100% means fully implemented action compared to the untreated comparative group.

(Notes: the term “seeds” is also used to refer to vegetative forms of propagation, for example, segments of roots or rhizomes; abbreviations used: “light” means the duration of illumination in hours, “g AB / ha” means the consumption of the active substance in grams per hectare, “l / ha ”means consumption in liters per hectare, S means sensitive, R means steady).

1. The effect of herbicides on weeds when pre-emergence treatment

Seeds of weeds and low-value cereals of various biotypes (origin) are sown in pots with a diameter of 8 to 13 cm, filled with normative natural field soil (dusty loam, non-sterile), and sprinkled with a protective soil layer about 1 cm thick. Then the pots are placed in a cultivation greenhouse plants until their treatment (light 12-16 hours, daytime temperature 20-22 ° C, nighttime temperature 15-18 ° C). At the stages of the development of seeds / plants, VVSN 00-10, the pots are treated on a laboratory device for spraying with working solutions containing the inventive products, mixtures or separately used components in the form of water-dispersible granules, wettable powders, emulsifiable concentrates or other preparations. The consumption of water used for spraying is from 100 to 600 l / ha. After processing, the plants are again placed in greenhouses, where they are, if necessary, fertilized and watered.

2. The effect of herbicides on weeds during post-emergence treatment

Seeds of weeds and low-value cereals of various biotypes (origin) are sown in pots with a diameter of 8 to 13 cm, filled with normative natural field soil (dusty loam, non-sterile), and sprinkled with a protective soil layer about 1 cm thick. Then the pots are placed in a cultivation greenhouse plants until their treatment (light 12-16 hours, daytime temperature 20-22 ° C, nighttime temperature 15-18 ° C). Pots at different stages of the development of seeds / plants of the BBCH in the range of 11-25, that is, as a rule, in the intermediate period between two and three weeks after the start of cultivation, are processed on a laboratory device for spraying with working solutions containing the inventive products, mixtures or separately used components in the form of water-dispersible granules, wettable powders, emulsifiable concentrates or other preparations. The consumption of water used for spraying is from 100 to 600 l / ha. After processing, the plants are again placed in greenhouses, where they are, if necessary, fertilized and watered.

3. Selectivity of herbicidal action in pre-emergence treatment

The seeds of various types of crops (origin) are sown in pots with a diameter of 8 to 13 cm, filled with normative natural field soil (dusty loam, non-sterile), and sprinkled with a protective layer of soil about 1 cm thick. Then the pots are placed in a greenhouse for plant cultivation until they are processing (light 12-16 hours, daytime temperature 20-22 ° C, night temperature 15-18 ° C). At the stage of development of seeds / plants, VVSN 00-10, the pots are processed on a laboratory device for spraying with working solutions containing the agents of the invention, mixtures or separately used components in the form of water-dispersible granules, wettable powders, emulsifiable concentrates or other preparations. The consumption of water used for spraying is from 100 to 600 l / ha. After processing, the plants are again placed in greenhouses, where they are, if necessary, fertilized and watered.

4. Selectivity of herbicidal action in post-emergence treatment

The seeds of various types of crops (origin) are sown in pots with a diameter of 8 to 13 cm, filled with normative natural field soil (dusty loam, non-sterile), and sprinkled with a protective layer of soil about 1 cm thick. Then the pots are placed in a greenhouse for plant cultivation until they are processing (light 12-16 hours, daytime temperature 20-22 ° C, night temperature 15-18 ° C). Pots at different stages of the development of seeds / plants of the BBCH in the range of 11-32, that is, as a rule, in the intermediate period between two and four weeks after the start of cultivation, are processed on a laboratory device for spraying with working solutions containing the inventive products, mixtures or separately used components in the form of water-dispersible granules, wettable powders, emulsifiable concentrates or other preparations. The consumption of water used for spraying is from 100 to 600 l / ha. After processing, the plants are again placed in greenhouses, where they are, if necessary, fertilized and watered. Plants are cultivated in a greenhouse under the following conditions: light 12-16 hours, daytime temperature 20-22 ° C, night temperature 15-18 ° C.

5. The effect of herbicides on weeds during pre-emergence and post-emergence treatment and variation of cultivation conditions

Seeds of weeds and low-value cereals of various biotypes (origin) are sown in pots with a diameter of 8 to 13 cm, filled with normative natural field soil (dusty loam, non-sterile), and sprinkled with a protective soil layer about 1 cm thick. Then the pots are placed in a cultivation greenhouse plants until their treatment (light 12-16 hours, daytime temperature 20-22 ° C, nighttime temperature 15-18 ° C). Pots at different stages of development of seeds / plants VVSN 00-25 are treated on a laboratory device for spraying with working solutions containing the inventive products, mixtures or separately used components in the form of water-dispersible granules, wettable powders, emulsifiable concentrates or other preparations. The consumption of water used for spraying is from 100 to 600 l / ha. After processing, the plants are again placed in greenhouses, where they are, if necessary, fertilized and watered. Plants are cultivated in a greenhouse under the following conditions: light 12-16 hours, daytime temperature 20-22 ° C, night temperature 15-18 ° C. Irrigation varies depending on the purpose of the experiment. At the same time, the individual compared groups are irrigated with water in the range from moisture of stable wilting to maximum field moisture capacity.

6. The effect of herbicides on weeds during pre-emergence and post-emergence treatment and variation of irrigation conditions

Seeds of weeds and low-value cereals of various biotypes (origin) are sown in pots with a diameter of 8 to 13 cm, filled with normative natural field soil (dusty loam, non-sterile), and sprinkled with a protective soil layer about 1 cm thick. Then the pots are placed in a cultivation greenhouse plants until their treatment (light 12-16 hours, daytime temperature 20-22 ° C, nighttime temperature 15-18 ° C). Pots at different stages of development of seeds / plants VVSN 00-25 are treated on a laboratory device for spraying with working solutions containing the inventive products, mixtures or separately used components in the form of water-dispersible granules, wettable powders, emulsifiable concentrates or other preparations. The consumption of water used for spraying is from 100 to 600 l / ha. After processing, the plants are again placed in greenhouses, where they are, if necessary, fertilized and watered. Plants are cultivated in a greenhouse under the following conditions: light 12-16 hours, daytime temperature 20-22 ° C, night temperature 15-18 ° C. At the same time, the irrigation technique of different compared groups is varied. Irrigation is performed from below or by ledges from below (simulated irrigation by sprinkling).

7. The effect of herbicides on weeds during pre-emergence and post-emergence cultivation and variation of soil type

Seeds of weeds and low-value cereals of various biotypes (origin) are sown in pots with a diameter of 8 to 13 cm filled with natural soil and sprinkled with a protective layer of soil about 1 cm thick. To compare the herbicidal effect, plants are cultivated in varying soils (from sandy soil to heavy clay soil ) with different contents of organic substances. Then the pots are placed in a greenhouse for cultivating plants until they are processed (light 12-16 hours, daytime temperature 20-22 ° C, night temperature 15-18 ° C). Pots at different stages of development of seeds / plants VVSN 00-25 are treated on a laboratory device for spraying with working solutions containing the inventive products, mixtures or separately used components in the form of water-dispersible granules, wettable powders, emulsifiable concentrates or other preparations. The consumption of water used for spraying is from 100 to 600 l / ha. After processing, the plants are again placed in greenhouses, where they are, if necessary, fertilized and watered. Plants are cultivated in a greenhouse under the following conditions: light 12-16 hours, daytime temperature 20-22 ° C, night temperature 15-18 ° C.

8. The effect of herbicides on weeds during pre-emergence and post-emergence treatment in order to combat resistant species of low-value cereals and weeds

Seeds of weeds and low-value cereals of various biotypes (origin) with different mechanisms of resistance to variable mechanisms of action are sown in pots with a diameter of 8 to 13 cm, filled with normative natural field soil (dusty loam, non-sterile), and sprinkled with a protective layer of soil about 1 cm thick Then the pots are placed in a greenhouse for cultivating the plants until they are processed (light 12-16 hours, daytime temperature 20-22 ° C, night temperature 15-18 ° C). Pots at different stages of development of seeds / plants VVSN 00-25 are treated on a laboratory device for spraying with working solutions containing the inventive products, mixtures or separately used components in the form of water-dispersible granules, wettable powders, emulsifiable concentrates or other preparations. The consumption of water used for spraying is from 100 to 600 l / ha. After processing, the plants are again placed in greenhouses, where they are, if necessary, fertilized and watered. Plants are cultivated in a greenhouse under the following conditions: light 12-16 hours, daytime temperature 20-22 ° C, night temperature 15-18 ° C.

9. The effect of herbicides on weeds and the selectivity of the action of herbicides on cultivated plants with pre-emergence and post-emergence treatment and variation of seeding conditions

Seeds of weeds and low-value cereals of different biotypes (origin), as well as seeds of cultivated plants of varying origin are sown in pots with a diameter of 8 to 13 cm filled with natural soil and sprinkled with a protective layer of soil with a thickness of about 0 to 5 cm.Then the pots are placed in a greenhouse ( light 12-16 hours, daytime temperature 20-22 ° C, nighttime temperature 15-18 ° C) for cultivating plants until they are treated. Pots at different stages of development of seeds / plants VVSN 00-25 are treated on a laboratory device for spraying with working solutions containing the inventive products, mixtures or separately used components in the form of water-dispersible granules, wettable powders, emulsifiable concentrates or other preparations. The consumption of water used for spraying is from 100 to 600 l / ha. After processing, the plants are again placed in greenhouses, where they are, if necessary, fertilized and watered. Plants are cultivated in a greenhouse under the following conditions: light 12-16 hours, daytime temperature 20-22 ° C, night temperature 15-18 ° C.

Field experiments

In field experiments performed under natural conditions during the usual preparation of the field and the natural or artificial contamination of cultivated plants with weeds before or after sowing of cultivated plants, respectively, before or after germination of weeds, the inventive agents, mixtures of the prior art or individual components are used, moreover in the period after treatment, ranging from four weeks to eight months, a visual assessment is performed in points, the results of which are compared with untreated areas of the field (plots). At the same time, the damage caused to cultivated plants and the effect of preparations on weeds are evaluated in percentage terms similar to other results of the corresponding experiments.

b) Results

The following abbreviations are used.

VVSN - a code of a stage of morphological development of this or that plant. This reduction is officially used by the Federal Bureau of Biology, the Federal Office for the Protection of New Varieties of Plants and in the chemical industry. The interval VVSN 00-10 corresponds to the stages from seed germination to emergence on the surface. The interval VVSN 11-25 corresponds to the stages from the appearance of leaves to tillering (the corresponding number of tillering shoots or lateral shoots).

RE - pre-emergence tillage (VVSN seeds / plants 00-10).

RO - post-emergence treatment of green parts of plants (BBCH plants 11-25).

HRAC is the abbreviated name of the Herbicide Resistance Action Committee, which classifies officially approved active substances according to their mechanism of action (MoA).

HRAC group A - acetyl coenzyme A-carboxylase inhibitors (ACCase according to MoA).

HRAC group B - acetolactate synthase inhibitors (ALS according to MoA).

AB - active substance (in terms of 100% active substance, synonym a.i. (English)).

Dosage in g AB / ha is the amount consumed in grams of active substance (AB) per hectare (ha).

LOLSS - Lolium spp. (choked).

The action of the herbicidal agents proposed in the invention meets the relevant requirements, and therefore, allows us to solve the problem of optimizing the complex of applied properties of flufenacet as a herbicidal active substance (in particular, it allows the flexibility of varying the required flow rates with an unchanged or increased efficiency).

When evaluating the herbicidal action of the agents of the invention on economically important monocotyledonous and dicotyledonous harmful plants in comparison with the corresponding action of prior art mixtures or individually applied components, the synergistic herbicidal action is calculated according to the Colby equation (see SR Colby, Weeds 15 (1967), 20-22 ):

wherein:

A, B and C mean the herbicidal action (in%) of each of the components A, B and C at their dosage, or respectively component a, b and c (in grams AB / ha),

E ^C means the expected Colby value (in%) at a dosage of (a + b + c) grams AB / ha.

And means the difference (in%) between the measured value (in%) and the expected value (in%) (that is, the measured value minus the expected value).

Analysis: measured values (in%) respectively for (A), (B) and (C) and (A) + (B) + (C).

Grade Scale:

синергизм (+Δ),- the measured value (in%) exceeds E ^C :

synergism (+ Δ),

аддитивный эффект (±0Δ),- the measured value (in%) is equal to E ^C :

additive effect (± 0Δ),

антагонизм (-Δ).- the measured value (%) is less than E ^C :

antagonism (-Δ).

For the studied plant species, it was found that the mixture is characterized by a strong synergistic effect with respect to stable HRAC biotypes of groups A and B (Δ from +58 to +15).

Claims (26)

1. Herbicidal agent containing as the only components with herbicidal action: A) flufenacet (component A), B) aclonifen (component B) and C) diflufenican (component C). 2. The herbicidal agent according to claim 1, wherein the mass ratio of the components with the herbicidal action of A: B: C is (1-2000) :( 1-100) :( 1-500). 3. The herbicidal agent according to claim 1, wherein the mass ratio of the components with the herbicidal action of A: B: C is (1-40) :( 1-25) :( 1-30). 4. The herbicidal agent according to claim 1, wherein the mass ratio of the components with the herbicidal action of A: B: C is (1-10) :( 1-10) :( 1-8). 5. The herbicidal agent according to claim 1, containing the respective herbicidal components in the following consumable amounts: component A: 10-2000 g AB / ha, component B: 10-5000 g AB / ha, component C: 1-500 g AB / ha. 6. The herbicidal agent according to claim 1, containing the respective herbicidal components in the following consumable amounts: component A: 30-400 g AB / ha, component B: 80-3000 g AB / ha, component C: 10-300 g AB / ha. 7. The herbicidal agent according to claim 1, containing the respective herbicidal components in the following consumable amounts: component A: 50-300 g AB / ha, component B: 80-1000 g AB / ha, component C: 30-200 g AB / ha. 8. The herbicidal agent according to claim 1, additionally containing conventional plant protection additives and / or prescription auxiliary components. 9. The herbicidal agent according to one of paragraphs. 1-8, additionally containing one or more other components selected from the group of agrochemical active substances, including insecticides, fungicides and protective agents. 10. The use of a herbicidal agent according to one of claims. 1-9 to control harmful plants. 11. The use of a herbicidal agent according to one of claims. 1-9 for controlling herbicide resistant harmful plants. 12. A method of controlling the growth of unwanted plants, the components A, B and C of the herbicidal agent according to one of claims. 1-9 are applied together or separately to plants, parts of plants, seeds or the surface on which plants grow. 13. The method according to p. 12 for the selective control of harmful plants in plant crops. 14. The method according to p. 13, wherein the plant crops are modified by genetic engineering methods or obtained by mutational selection.